Segment Information (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended									12 Months Ended
	Oct. 19, 2012	Dec. 31, 2013	Sep. 26, 2013	Jun. 27, 2013	Mar. 28, 2013	Dec. 31, 2012	Sep. 27, 2012	Jun. 28, 2012	Mar. 29, 2012	Jun. 30, 2011	Dec. 31, 2013 segment customer	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting [Abstract]
Number Of Principal Segments											3
Percentage Of Net Revenue Derived From Two Largest Customers											94.00%
Number Of Largest Customers											2
Segment Revenues
Revenues		$ 1,494.4	$ 1,503.7	$ 1,520.7	$ 1,442.2	$ 1,425.6	$ 1,365.3	$ 1,341.0	$ 1,265.8		$ 5,961.0	$ 5,397.7	$ 4,863.8
Segment Operating Income
Business Segment Operating Income											(103.7)	124.8	521.3
Unallocated corporate SG&A											(181.5)	(155.3)	(145.5)
Unallocated impact of severe weather event											30.3	(146.2)	0
Unallocated research and development											(8.9)	(4.4)	(1.9)
Unallocated cost of sales											(39.9)	(19.0)	(17.8)
Operating (loss) income		(320.8)	50.5	(238.5)	144.5	98.0	(210.5)	82.5	122.3		(364.3)	92.3	356.1
Textuals [Abstract]
Net Forward Loss Charge Recorded							590.0				1,133.3
Insurance settlement	234.9											234.9
Cumulative Catch Up Adjustment											95.5	14.7	13.8
Impact from severe weather event											30.3	146.2	0
Net Decrease In Operating Profit From Impact Of Changes In Profit Booking Rates And Other Matters											1,133.3	644.7
Incentive Compensation Included In Unallocated Cost Of Sale								2.2			17.8
Asset Impairment Charges								3.6			3.6
Change In Estimate To Increase Warranty And Extraordinary Rework Reserve Included In Unallocated Cost Of Sale										9.0	38.1	11.0	6.9
Early Retirement Incentive											1.6	2.1	1.9
Pension Related Gains included in Unallocated costs of sale											15.4
Fuselage Systems [Member]
Segment Revenues
Revenues											2,861.1	2,590.6	2,425.0
Segment Operating Income
Business Segment Operating Income											70.1	391.9	323.1
Textuals [Abstract]
Cumulative Catch Up Adjustment											60.1	(2.4)
Propulsion Systems [Member]
Segment Revenues
Revenues											1,581.3	1,420.9	1,221.5
Segment Operating Income
Business Segment Operating Income											235.8	67.5	196.4
Textuals [Abstract]
Cumulative Catch Up Adjustment											30.0	7.3
Net Decrease In Operating Profit From Impact Of Changes In Profit Booking Rates And Other Matters				8.4
Wing Systems [Member]
Segment Revenues
Revenues											1,502.5	1,375.1	1,207.8
Segment Operating Income
Business Segment Operating Income											(414.0)	(335.6)	0.5
Textuals [Abstract]
Cumulative Catch Up Adjustment											5.4	9.8
Other Systems [Member]
Segment Revenues
Revenues											16.1	11.1	9.5
Segment Operating Income
Business Segment Operating Income											4.4	1.0	1.3
B747-8 [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											41.1	11.5
B747-8 [Member] | Fuselage Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											41.1	6.4	12.6
B747-8 [Member] | Wing Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded												5.1	5.7
Sikorsky [Member] | Fuselage Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded													29.0
A350 XWB non-recurring [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded			32.7								32.7	8.9
A350 XWB non-recurring [Member] | Fuselage Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											32.7
A350 XWB non-recurring [Member] | Wing Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded												8.9	3.0
A350 XWB recurring program [Member] | Fuselage Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											78.6
G280 [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											240.9	118.8
G280 [Member] | Wing Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											240.9	118.8	81.8
Rolls-Royce [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											21.7	151.0
Net Decrease In Operating Profit From Impact Of Changes In Profit Booking Rates And Other Matters				8.4
Rolls-Royce [Member] | Propulsion Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											21.7	151.0
B787 [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded		384.7									422.0	184.0
B787 [Member] | Fuselage Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											333.1
B787 [Member] | Propulsion Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											30.6
B787 [Member] | Wing Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded				37.3							58.3	184.0
Airbus Three Hundred Fifty XWB [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											78.6
Airbus Three Hundred Fifty XWB [Member] | Fuselage Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											111.3
G650 [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											288.3	162.5
G650 [Member] | Wing Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											288.3	162.5
B767 [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											16.4	8.0
B767 [Member] | Fuselage Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											4.1
B767 [Member] | Propulsion Systems [Member]
Textuals [Abstract]
Net Forward Loss Charge Recorded											$ 12.3	$ 8.0